Car-ventilator.



- No. 858,288. PATENTBD yJIJ-NL 25,1907.

E. N. DILLMAN. -GAR VENTILATOR.

APPLIOATIQN FILED JAN. 3, 1907.

Giroux,

4EDWARD N. DiLLMAnoF ST. Louis, MISSOURI.

CAR-VENTILATOB.

Specication of Letters Patent. i

Patented June 25, 1907.

vto provide al simple,reliable and e'ective de vice of this character whi is readily applicable to-eXisting car structures totake the place of the ordinary deck screen ventilators.

In the accompanying drawing-Figure is a top plan view of a car ventilator embody-'- ing the preferred form of theinvention. 'Fig 2 is a horizontal section'th'ereof. Fig. 3 is an outer end elevation looking toward the discharge pipe. I

Referring casin of the ventilator, which serves the functionof a discharge pipe forthe foul air and is secured at its inner end to abaseboard or plate 2, which is applied in ractice to the side of the deck of thecar to talle' the placeof the ordinary screen ventilator, 'the board being provided with an opening 3 in communication with the casing and interior of the car.

Arranged within the casing is a suction device comprising a tube 4 divided by a partition 5 to form passages 6 and 7. These passages are in respective communication with conductors 8 and 9 extending from the tube outwardly through opposite sides of the casing and projectin in opposite directions, the outer or inlet en s of said conductors being flared for the free admission of air discharge pipe by a partition 14, deflectors 15 and 16 being provided within the conductors to shield said ports and guide 'the flowing currents of air so as to prevent any retardation in the exhaust of currents of foul air passing into the suction tube 6.

The passages 6 and 7 are controlled by an automatic valve or shutter 17 pivotally mounted at the outer end of the artition 5 on a pivot pin 18,- said'shutter eing priovided with angularly arranged leaves or plates '19 and 20. to respectively close said ductor 8 is facing tothe drawing, 1 vdesighates the passages. the leaves so relatively disposed t at lthe shutter in its opposite movements will alternately and reversely open and close the passa es.

n practice, conductors 8 and 9 face toward the opposite ends of the car, and, assuming that the conthe direction of travel of the train, the air entering through the conductor 8 will swing the valve or shutter to the position shown in Fig. 2, passage 6 and close the passage 7. The current of air will accordingly discharge through the passage 6 yinto the outer end of the discharge pipe 1 and thence to the atmosphere,

thus creating asuction in the passage '12,'

whereby the foul air will becaused to pass from the car into said passage A12', thence through the port -10 into the passage 6 and finally out through the pipe 1 withthe suction-inducting current ofair enterin valve in this connection in'closing thepassage 7 Will, it is apparent, prevent air from entering or discharging through the conductor 9, and consequently any back suction that would otherwise take place to retard the discharge of foul air through the acting foul air discharge passage.

the opposite direction, thepressure of the air rushing through conductor.' 9w1ll swing the valve toopen the coacting passage7 and closethepassage 6 to secure the same result, anda suction 'll be created in the passage 13 and` foul air drawn thereinto and "discharged through` the port 11, assage 7 and outer end of the pipe 1, as willA ereadily understood. -1 i The pipe 1 may suitablyinclineoutwardly and downwardly to allow rain water to freely discharge without entering the ventilator, and

theI device may be applied to the car in any other suitable manner.

It wiil be seen that the ventilator is such as to secure rapid discharge of 'whereby the air tained in a wholesome condition.

construction of the a valve or shutter` automatically operated The shutter is so arran ed and.

When the car travels 1n the "character describedit will be understood that the so as to open the through the conductor or nozzle 8. The actlon of the a forcible and -v the foul air from the car, within the car will b`e main- IIG . 4 1o 5 Having thus described the invention, what vwhen either conductor is in action to close the other conductor.

2. A ventilator oi the character described com risinga casing having suction passages,

dp therein and commul mcating at one' end with the suction passages and at their opposite ends with the outer end of the casing', and a/pivoted valve operative when either conductor is in action t0 automatically open said conductor and close the con uctors extendin otherv conductor.

3. A ventilator of the character described comprising a discharge pipe or casing provided at its inner end With suction passages, conductors extending into said chamber and having passages communicating at oneend With the suction chambers and at the op site end with the outer end of the discharge saaaee 5. A ventilator of the character described prising a discharge ipe provided at its inner end with suction olii its outer end forming a air conductors entering said pi vided with ends into sald dlscharge passage andfprovided at their inner ends With ports communicatinCr with said suction chambers and having deii valve for automatically controlling communication between said conductor passages and the discharge passage.

6. A ventilator of the character describedV comprising a discharge pipe or casing having y suct1on chambers, air conductors communipoeating with said suction chambers, and a valve controlling communication between the conambers and having discharge passage,

pe and propassages opening at their outer ectors guarding said ports, and a pipe, and a pivoted shutter adapted to close ductcrs and outlet end of the discharge pipe,

the outer ends ofv the conductor passages, said shutter being automatically operative said valve being provided with angularly arranged portions operative to open one conlto open the passage of the active and close ductor andclose the other conductor,substanthe passage of the inactive conductor.

. 4. A ventilator of tjhe character described provided with outlet passage,

with thev said passages, and an automatic valve controlling communication between the conductors and outlet passage.

tially as described.

In testimony whereof, I afiix my signature alpair of suction anda single in presence of two witnesses.

conductors communicating EDWARD N. DILLiniN.

Witnesses 

